Kids who go to bed at the same time every night are better behaved. That’s the conclusion of a British study published in the journal “Pediatrics”. The study looked at children at three ages: 3, 5, and 7 years old. It found that those kids with irregular bedtimes had a far higher rate of behavior problems as noted by both parents and teachers. And the researchers found that if children switch to a set bed-time schedule, their behavior significantly improved.